i'm terrelle brown. the first ballots of election day 2012 have been cast. at least 120 million americans are expected to vote today in an election driven by record spending and even now, the outcome is up in the air. looking at the last gallup daily tracking poll of likely voters, president obama and mitt romney are separated by just one percentage point, a virtual tie. we have two reports this morning. randall pinkston is covering the romney campaign in boston. we begin with bigad shaban. >> reporter: president obama is spending election day in chicago. he cast his ballot there during early voting almost two weeks ago. the president wrapped up his campaign in des moines last night, just steps away from his iowa headquarters during his first presidential bid in 2008. >> are you fired up? >> reporter: president obama made one final plea for votes in the critical battleground state. >> after all the months of campaigning, after all the rallies, after the millions of dollars of ads, it all comes down to you. it's out of my hands now. >> reporter: president oba